5a34e94bb5cb2a260c290c4f630ab0a5c1bfe0a236fa28ed4f6269e7c80b57a8

Analysis

max time kernel
93s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-10-2024 07:07

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General

Target

ie/RichMediaViewV1release1005.dll
Size

85KB
MD5

e2094b10c7f2bfd3fcfe678e07263236
SHA1

79c04639e2f57ba523c9072f30ecd3fa96666ea6
SHA256

8f63bbf72260b0fb15fa8c6626f764d583e351445d1707975b96c52fca863f8e
SHA512

bf928cd4027241116d5f81fe25bf2844c084ce55c2882268b6ea72dcfd0621b978fabcceb2776704c10ed79a51c5afb9b852a9d0628f9213e00ad963e8e25d7c
SSDEEP

1536:4hMWCsgyMIwPnt6hp1ZcTkrCtSnCTfLlQQPbKS:9WKyMIwPt6hp1MSngaQPb3

Score

6^/10

adware discovery stealer

Malware Config

Signatures

Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

BHOs are DLL modules which act as plugins for Internet Explorer.

stealer adware

Modify Registry

T1112

Browser Extensions

T1176

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{528e742d-fb14-4a0e-86c9-e71289b3b810}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{528e742d-fb14-4a0e-86c9-e71289b3b810}\ = "RichMediaViewV1release1005"	regsvr32.exe
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects\{528e742d-fb14-4a0e-86c9-e71289b3b810}\NoExplorer = "1"	regsvr32.exe

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32.exe

Modifies registry class 34 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{528e742d-fb14-4a0e-86c9-e71289b3b810}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release1005.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}\1.1\ = "RichMediaViewV1release1005Lib"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}\1.1\0\win32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\TypeLib\ = "{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{528e742d-fb14-4a0e-86c9-e71289b3b810}\Version\ = "1.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}\1.1\FLAGS\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\ = "IRichMediaViewV1release1005BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}\1.1\0	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}\1.1\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie\\RichMediaViewV1release1005.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\ProxyStubClsid32\ = "{00020424-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{528e742d-fb14-4a0e-86c9-e71289b3b810}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{528e742d-fb14-4a0e-86c9-e71289b3b810}\TypeLib\ = "{1f3e5b8f-e83f-4b22-8ac9-54e5e476a4a6}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{528e742d-fb14-4a0e-86c9-e71289b3b810}\Version	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}\1.1\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{528e742d-fb14-4a0e-86c9-e71289b3b810}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{528e742d-fb14-4a0e-86c9-e71289b3b810}\ = "RichMediaViewV1release1005"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}\1.1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\TypeLib\ = "{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\ = "IRichMediaViewV1release1005BHO"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{528e742d-fb14-4a0e-86c9-e71289b3b810}\Programmable	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}\1.1\HELPDIR\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\ie"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\TypeLib\Version = "1.1"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{528e742d-fb14-4a0e-86c9-e71289b3b810}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{528e742d-fb14-4a0e-86c9-e71289b3b810}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{1F3E5B8F-E83F-4B22-8AC9-54E5E476A4A6}\1.1\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{4AEA18C7-38AA-4BC9-9E9D-7AEAAE913D62}\TypeLib\Version = "1.1"	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4176 wrote to memory of 4324	4176	regsvr32.exe	82
PID 4176 wrote to memory of 4324	4176	regsvr32.exe	82
PID 4176 wrote to memory of 4324	4176	regsvr32.exe	82

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release1005.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4176
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\ie\RichMediaViewV1release1005.dll
  2⤵
  - Installs/modifies Browser Helper Object
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  PID:4324

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Browser Extensions

T1176

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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